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Insects that most people like

Coccinella septempunctata is the most common species of ladybugs in Norway, and most people are familiar with it. However, there are many other species in Norway. Credits: Arnstein Staverløkk, NINA

Flies, bees and mosquitoes suffer from that image and rarely meet people who get excited or laugh when they see them. But have you ever met someone who doesn’t like ladybugs?


Ladybugs are one of our most famous and beloved insects. Frode Ødegaard, an associate professor of natural history at the NTNU University Museum, says everyone has a relationship with them.

Ladybugs only compete with butterflies and bees, probably for human favor. They also play a central role in nature.

“Ladybugs are ecologically important in controlling pest populations, and their uses include biological control in greenhouses,” says Ødegaard.

Now you can easily find out about them. The text can be Norwegian, but the pictures are universal and the Latin names are the same no matter what language you speak.

For the past year, Ødegaard has worked with photographer and chief engineer Arnstein Staverløkk at the Norwegian Institute for Nature (NINA).

“We created Websites of all species of Norwegian ladybugs“Ødegaard says. They worked with the Norwegian Biodiversity Information Center.

In fact, ladybugs are beetles, and not all beetles awaken to the same degree of enthusiasm.But the beauty of many Ladybugs Race Perhaps it helps them overcome the beetle designation.

“Norway has 56 species of ladybugs that grow naturally here, most of which are easily identifiable by their round bodies and colorful, speckled patterns, but some are small and unobtrusive,” says Ødegaard. increase.

Ladybugs: Most people's favorite insects

Ladybugs also look like this. This is the rare Parexochomus nigromaculatus (Lyngmarihøne in Norwegian). Did you think it was a ladybugs? Credits: Arnstein Staverløkk, NINA

2 to 24 spots anywhere

There are many variations of ladybugs, and there is no guarantee that they will all be recognized as ladybugs. However, one characteristic feature is frequently repeated.

“Most ladybugs have a dot pattern. There are 2, 4, 5, 7, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24 spot ladybugs. And no, Dots have nothing to do with age, “says Ødegaard.

The number of dots is just one of several myths related to ladybugs. Ladybugs also occupy an important position in legends and folk beliefs. They are a symbol of both fertility and happiness and have been regarded as a gift from God to choke the aphids.

Not a bad myth for a group of insects that use chemical warfare against their enemies. Ladybugs protect themselves from attacks by secreting poison from their knees.It’s charming

Ladybugs: Most people's favorite insects

Various varieties of Harlequin (or colorful Asian) lady beetle (Harmonia axyridis). This is an unwelcome guest that surpasses the Norwegian native species. Credits: Arnstein Staverløkk, NINA

Alien species are not welcome

There are many types of ladybugs in Norway. In fact, it’s probably too few.

“In addition to our own seeds, we have some Invasive alien species It doesn’t belong here, “says Ødegaard.

These alien species came to the country as smugglers, for example through foreign imports of fruits and vegetables, newly introduced horticultural plants and timber.

Guests are not welcomed for several reasons. Some invasive aliens can defeat native ladybug species by eating both larvae and prey. They also devour fruit crops, leaving a bad taste and can destroy the fruit.

“One of these unwanted species is the Harlequin ladybugs. After coming to Norway as a stowaway, they settled in Norway. This species can eat other ladybugs and destroy crops.” Ødegaard says.

Clitostethus arcuatus, called eføy marihøne in Norwegian, is another Alien species It is known to live and breed in Norway. In addition, several other species have arrived in this country, but could not be a permanent part of the Norwegian fauna because they could not cope with the conditions here.

Ladybugs: Most people's favorite insects

Clitostethus arcuatus (Eføymarihøne in Norwegian), another unwanted invasive species in Norway. Credits: Arnstein Staverløkk, NINA

Humans destroying ladybugs habitat

Ladybugs are generally popular, but human activity threatens some species.

“11 species of ladybugs are on the Red List in Norway, mainly because of their habitat destruction,” says Ødegaard.

The Norwegian Species Red List is an overview of the Biodiversity Information Center for Endangered Species in Norway. The Intergovernmental Nature Panel IPBES believes that land-use changes are a major threat to species diversity on Earth, and this also applies to ladybugs.

Ladybugs: Most people's favorite insects

14 spots of cream spot ladybugs. Fortunately, this species is still common. Credits: Arnstein Staverløkk, NINA

“The main reason for the decline in endangered ladybugs is the decline in hot, dry, open-field areas such as sandy beaches and unfertilized terrain,” says Ødegaard.

Old-growth forests and flower meadows disappear due to housing, business, road development, altered agriculture and forestry. Well-maintained young forests with few tree species do not provide the basis for insect diversity as old forests do.

To find out more about this and other topics related to ladybugs, visit the Norwegian Biodiversity Information Center. New website All of them.


Invasive ladybugs threaten other ladybugs in the UK


Quote: Ladybugs: Most people’s favorite insects (February 15, 2022) got February 15, 2022 from https: //phys.org/news/2022-02-ladybirds-insects.html

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Insects that most people like

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